User's Manual
Grandstream Networks, Inc.  HT-702 User Manual  Page 21 of 32 
  Firmware Version 1.0.0.17  Last Updated: 02/2012 
Firmware Key 
Used for firmware encryption. Should be 32 digit in hexadecimal representation. End 
user should keep it blank. 
SSL Certificate 
The user specify SSL certificate used for SIP over TLS in X.509 format. 
SSL Private Key 
The user specify SSL private key used for SIP over TLS in X.509 format. 
SSL Private Key 
Password 
User specify password to protect the private key above. 
ACS URL 
User specify the Auto Configuration Server’s URL (TR-069 protocol) 
ACS Username 
User specify the ACS Username 
ACS Password 
User specify the ACS password 
Periodic Inform 
Enable 
Default is No. If set to YES, device will send inform packets to the ACS 
Periodic Inform 
Interval 
Frequency that the inform packets will be sent out to the ACS 
Connection Request 
Username 
Set a user name for the ACS to connect to this device 
Connection Request 
Password 
Set a password for the ACS to connect to this device 
System Ring Cadence  Configuration option is set ring cadence on all FXS ports for all incoming calls. (Syntax: 
c=on1/off1-on2/off2-on3/off3(only 3 cadences maximum)) Default is set to c=2000/4000; 
(US standards) 
Call Progress Tones 
Using these settings, users can configure tone frequencies and cadence according to 
their preference. By default they are set to North American frequencies. Configure these 
settings with known values to avoid uncomfortable high pitch sounds. ON is the period of 
ringing (“On time” in ‘ms’) while OFF is the period of silence. In order to set a continuous 
tone, OFF should be zero. Otherwise it will ring ON ms and a pause of OFF ms and then 
repeat the pattern. 
Example configuration for N.A. Dialtone: 
f1=350@-13,f2=440@-13,c=0/0; 
Syntax: f1=freq@vol, f2=freq@vol, c=on1/off1-on2/off2-on3/off3; [...] 
(Note: freq: 0 - 4000Hz; vol: -30 - 0dBm) 
Lock Keypad Update  Default is No. If set to “Yes”, the configuration update via keypad is disabled. 
Disable Voice Prompt  Default is No. Disables the voice prompt configuration. 
Disable Direct IP Call  Default is No. Disables the Direct IP Call function. 
NTP server 
URI or IP address of the NTP (Network Time Protocol) server. This parameter 
synchronizes the date and time. 
Allow DHCP option 42 
to override NTP serve 
Default NO. Enables the DHCP server to handle the NTP Server via Option 42 
Syslog Server 
The IP address or URL of System log server. This feature is especially useful for the ITSP 
(Internet Telephone Service Provider) 










